Nestled in central Indonesia, in Southeast Sulawesi, Lake Towuti sits in a biodiversity hotspot and lies in a region crucial for studying El Niño and long-term climate. The Towuti Drilling Project (TOWUTI) sent scientists to three drill sites around the lake to extract long cores from lake sediments and nearby rocks. In total, they drilled about 1.3 kilometers and recovered roughly 1.0 kilometer of usable material, creating a continuous archive of the lake’s history. By analyzing these sediments and the microbes that live there, researchers hope to reconstruct how climate, rainfall, and ecosystems in the Western Pacific warm pool have changed over thousands to hundreds of thousands of years. The lake’s geology features iron-rich surfaces that host unusual microbial life, echoing conditions from Earth’s early oceans and even some environments imagined on Mars. TOWUTI’s findings aim to reveal how climate, biology, and tiny microbes have evolved together in this tropical system, with broad implications for our planet’s past - and its future.